I want to ping 20.20.20.1 from my pc with 20.20.20.2 ip address ,& ping 172.31.131.14 or 172.31.131.14 ,but I can't .if my pc be in vlan 2 with 20.20.20.1 default gateway, I should to ping 20.20.20.1 but

I can't.what's the problem. if I want to route vlan 2 to next-hop 172.31.131.14

,I can't never access to vlan 1 or vlan 3 networks despite the fact that with enaqble ip routing in 3750 i expect that I can run intervlan routing.

The ProblemEnter EVCsHow It Works (Ingress)How It Works
(Egress)Step-by-Step ExampleFinal Thoughts The ProblemOn traditional
switches whenever we have a trunk interface we use the VLAN tag to
demultiplex the VLANs. The switch needs to determine which MAC ...
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The ProblemEnter EVCsHow It Works (Ingress)How It Works
(Egress)Step-by-Step ExampleFinal Thoughts Introduction: Netdr is a tool
available on a RSP720, Sup720 or Sup32 that allows one to capture
packets on the RP or SP inband. The netdr command can be use...
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IntroductionOSPF, being a link-state protocol, allows for every router
in the network to know of every link and OSPF speaker in the entire
network. From this picture each router independently runs the Shortest
Path First (SPF) algorithm to determine the b...
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